Math question
2006-12-27 3:38 am
The lengths of the sides of three triangular tables are given as follows:the first one is 11,12 and 13 : the second is 6,7and 8;while the third is 5,12and 13.which one can fit in with the corner of two perpendicular walls?
回答 (2)
2006-12-27 3:42 am
✔ 最佳答案
it should be the triangle with length 5,12and 13
because
it satisfy Pythagorean theorem
5^2+12^2=13^2
However, the other two does not satisfy Pythagorean theorem
2006-12-26 19:44:36 補充：
換句話說﹐其餘個兩個三角形冇直角﹐所以「拍」唔到落個兩幅牆既「角落頭」
2006-12-27 3:46 am
THE THIRD ONE can fit in with the corner of two perpendicular walls.
By pyth.th,(if one of the angle=90 degree)
(5^2+12^2) ----->整個開方
=13
By pyth.th,(if one of the angle=90 degree)
(5^2+12^2) ----->整個開方
=13
收錄日期: 2021-04-25 16:51:36
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